When a convertible is standing like the letter A on the table, then the view is not turning around

[ralf3u]

@humpty

Is it the touchpad you are trying to invert or the touchscreen ?

It is the touchscreen that I try to invert.

[humpty]

I googled around, it looks like id=9 (FTSC1000) that is the touchscreen.

Let’s have a look at
xinput list-props 9

[ralf3u]

This worked for me:

touchscreen inverted: Shift+F3: command:
xinput set-prop 9 'Coordinate Transformation Matrix' -1 0 1 0 -1 1 0 0 1

touchscreen normal: Shift+F4: command:
xinput set-prop 9 'Coordinate Transformation Matrix' 1 0 0 0 1 0 0 0 1

By the way: This is to turn it to 90 degree:
view left: Shift+F5: command: xrandr -o left
touchscreen left: Shift+F6:
xinput set-prop 9 'Coordinate Transformation Matrix' 0 -1 1 1 0 0 0 0 1
view right: Shift+F7: command: xrandr -o right
touchscreen right: Shift+F8:
xinput set-prop 9 'Coordinate Transformation Matrix' 0 1 0 -1 0 1 0 0 1

@humpty
Thank you so much for your help.

[ralf3u]

Could it be that an auto-rotation will be part of a linux-kernel one day, so one don’t need to press some shortcuts for the tent-mode?